Results 71 to 80 of about 379 (121)

Glitches and Glitching Clusters in Rotation-powered Pulsars

The Astrophysical Journal
The study of pulsar glitch phenomena serves as a valuable probe into the dynamic properties of matter under extreme high-density conditions, offering insights into the physics within neutron stars.
Pei-Xin Zhu, Xiao-Ping Zheng
doaj   +1 more source

AstroM3: A Self-supervised Multimodal Model for Astronomy

The Astronomical Journal
While machine-learned models are now routinely employed to facilitate astronomical inquiry, model inputs tend to be limited to a primary data source (namely images or time series) and, in the more advanced approaches, some metadata.
M. Rizhko, J. S. Bloom
doaj   +1 more source

The First Direct Occurrence Rate Estimates for Kepler Exoplanets in Small-separation Binary Star Systems: Planet Occurrence Is Suppressed in Binary Stars

The Astronomical Journal
Exoplanet occurrence rates facilitate comparisons between observations of planets and theoretical models of planet formation. Despite their deductive power, exoplanet occurrence rates for half the stars in the sky are missing because occurrence rate ...
Kendall Sullivan, Anne Dattilo, Natalie M. Batalha   +2 more
doaj   +1 more source

Squeezing Full-shape Dynamical Dark Energy Constraints with Galaxy Alignments

The Astrophysical Journal Letters
Recent 2 σ –4 σ deviations from the cosmological constant ${\rm{\Lambda }}$ suggest that dark energy (DE) may be dynamical, based on baryon acoustic oscillations and full-shape galaxy clustering (FS GC) analyses.
Junsup Shim, Teppei Okumura, Atsushi Taruya   +2 more
doaj   +1 more source

Distributions of Wide Binary Stars in Theory and in Gaia Data. II. Reconstruction of Sample Probability Density of True Orbit Sizes

The Astronomical Journal
Wide binary stars are important for testing alternative models of gravitation in the weak-field regime and understanding the statistical outcomes of dynamical interactions in the general Galactic field. The Gaia mission’s collection of weakly bound pairs
Valeri V. Makarov
doaj   +1 more source

Formation of the first three gravitational-wave observations through isolated binary evolution. [PDF]

Nat Commun, 2017
Stevenson S, Vigna-Gómez A, Mandel I, Barrett JW, Neijssel CJ, Perkins D, de Mink SE.   +6 more
europepmc   +1 more source

Observational Evidence for Spin Alignment between Galaxy Groups and Their Central Galaxies

The Astrophysical Journal Letters
We present a systematic observational study of the spin alignment between galaxy groups and their central galaxies using a large spectroscopic sample from the Sloan Digital Sky Survey.
Peng Wang
doaj   +1 more source

Inference for the physical sciences. [PDF]

Philos Trans A Math Phys Eng Sci, 2013
Jones NS, Maccarone TJ.
europepmc   +1 more source

Cosmology from One Galaxy in a Void?

The Astrophysical Journal Letters
Understanding galaxy properties may be the key to unlocking some of the most intriguing mysteries of modern cosmology. Recent work relied on machine learning to extract cosmological constraints on Ω _m using only one galaxy.
Bonny Y. Wang, Alice Pisani
doaj   +1 more source

PLANETARY CANDIDATES OBSERVED BY Kepler. VIII. A FULLY AUTOMATED CATALOG WITH MEASURED COMPLETENESS AND RELIABILITY BASED ON DATA RELEASE 25. [PDF]

Astrophys J Suppl Ser, 2018
Thompson SE, Coughlin JL, Hoffman K, Mullally F, Mullally F, Christiansen JL, Burke CJ, Bryson S, Batalha N, Haas MR, Catanzarite J, Rowe JF, Barentsen G, Caldwell DA, Clarke BD, Jenkins JM, Li J, Latham DW, Lissauer JJ, Mathur S, Morris RL, Seader SE, Smith JC, Klaus TC, Twicken JD, Van Cleve JE, Wohler B, Akeson R, Ciardi DR, Cochran WD, Henze CE, Howell SB, Huber D, Prša A, Ramírez SV, Morton TD, Barclay T, Campbell JR, Chaplin WJ, Charbonneau D, Christensen-Dalsgaard J, Dotson JL, Doyle L, Dunham EW, Dupree AK, Ford EB, Geary JC, Girouard FR, Isaacson H, Kjeldsen H, Quintana EV, Ragozzine D, Shporer A, Aguirre VS, Steffen JH, Still M, Tenenbaum P, Welsh WF, Wolfgang A, Zamudio KA, Koch DG, Borucki WJ.   +61 more
europepmc   +1 more source